NIPPON STEEL & SUMIKIN WELDING (NITTETSU SUMIKIN)
Plasma welding machine
| Plasma welding machine | NW-150AH-III |
| NW-350AH-III | |
| Plasma welding torch | 50WH |
| 51WH | |
| 50KWH | |
| 51KWH | |
| 100WH | |
| 101WH | |
| 107WH | |
| 503WH | |
| 504WH | |
| W-PLASMA torch | 2ERWH |
| Double shield plasma welding torch | 107WH-DS |
| Wire feeder | NF-1600 |
| Wire feeding control unit | WCU-093 |
| Wire head | YH4 |
| YH5 | |
| YH6 | |
| Chiller | NC-3000 |
| NC-5000 | |
| Radiator | NR-1800 |
Welding machine
| Fillet welding machine | NS Carry Auto III |
| NS Carry Auto Super I | |
| Carry Boy Ace | |
| Carry Boy K | |
| Tandem MISA | |
| Butt welding machine | UNI-OSCON |
| SY-mini | |
| NAVI-21 | |
| NAVI-21 multilayer | |
| NAVI-21MP | |
| VEGA-A | |
| SESNET-W | |
| NS One Side Mug | |
| Automatic welding equipment | Single side welding |
| Longitudinals welding | |
| Hydraulic discharge jack | |
| e.t.c. |